LTC2412

LTC2412 2-Channel Differential Input 24-Bit No Latency ∆Σ ADC FEATURES nn 2-Channel Differential Input with Automatic Channel Selection (Ping-Pong) nn Low Supply Current: 200µA, 4µA in Autosleep nn Differential Input and Differential Reference with GND to VCC Common Mode Range nn 2ppm INL, No Missing Codes nn 2.5ppm Full-Scale Error and 0.1ppm Offset nn 0.16ppm Noise, 22.5 Effective Number of Bits nn No Latency: Digital Filter Settles in a Single Cycle and Each Channel Conversion is Accurate nn Internal Oscillator—No External Components Re- quired nn 110dB Min, 50Hz or 60Hz Notch Filter nn Narrow SSOP-16 Package nn Single Supply 2.7V to 5.5V Operation APPLICATIONS nn Direct Sensor Digitizer nn Weight Scales nn Direct Temperature Measurement nn Gas Analyzers nn Strain-Gage Transducers nn Instrumentation nn Data Acquisition nn Industrial Process Control nn 6-Digit DVMs DESCRIPTION The LTC®2412 is a 2-channel differential input micropower 24-bit No Latency ∆Σ™ analog-to-digital converter with an integrated oscillator. It provides 2ppm INL and 0.16ppm RMS noise over the entire supply range. The two differential channels are converted alternately with channel ID included in the conversion results. It uses delta-sigma technology and provides single conversion settling of the digital filter. Through a single pin, the LTC2412 can be configured for better than 110dB input differential mode rejection at 50Hz or 60Hz ±2%, or it can be driven by an external oscillator for a user define...